فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri - Paris Observatory

NASA's mission to explore the two largest objects in the
→ asteroid belt, the asteroid Vesta and the
→ dawarf planet
Ceres, gathering data relating to their composition, internal structure, density and
shape. Launched in September 2007, Dawn
entered the orbit of → Vesta
in July 2011 and spent 16 months there
before leaving for → Ceres.
It entered Ceres orbit on March 6, 2015.
The Dawn spacecraft is made of aluminium and graphite composite, it
has a dry mass of 747.1 kg and a mass of 1217.7 kg when fully fuelled
prior to launch. The spacecraft is a box-shaped design measuring 1.64m
× 1.27m × 1.77m.